AnosmiaPhase 3NCT05461365
Intranasal Insulin for COVID-19-related Smell Loss
A Phase 3 study testing Insulin in people with Anosmia and Smell Loss, run by Universidad Panamericana at 1 site in Mexico.
Trial summary
The aim of this study was to quantify the improvement in olfaction of 27 post-COVID-19 patients, after three intreventions of intranasal insulin during a four week period, with the help of the Threshold, Discrimination and Identification (TDI) score evaluated with Sniffin Sticks®. Read more about this study
- Who is it for?
- Ages 18 to 59 years
- Conditions the study is for
- Anosmia, Smell Loss, Paraosmia
- What is being tested?
- Insulin
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 27 participants
- Where
- 1 siteMexico
- Study dates
- 4 Jan 2021to 20 Dec 2021
- Phase
- Phase 3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 59 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- COVID-19 in the last 3 to 18 months and who persisted with anosmia, hyposmia or other olfactory dysfunction chronically and without improvement
Who cannot join
- nasal tumors, chronic sinusitis, drug-induced sinusitis, nasal polyposis, neurodegenerative disease, smoking, pregnancy Hypoglycemia and a previous diagnosis of diabetes mellitus or anatomical malformations such as septal deviation, rhinosinusitis or choanal atresia
Trial locations and contacts
1 site in 1 country.
About this study
The aim of this study was to quantify the improvement in olfaction of 27 post-COVID-19 patients, after three intreventions of intranasal insulin during a four week period, with the help of the Threshold, Discrimination and Identification (TDI) score evaluated with Sniffin Sticks®.
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
InsulinDrug
Also called intranasal insulin
Gelfoam® cottonoids soaked in 40 IU of NPH insulin were placed on the nasal roof (between the nasal septum and the middle meatus) of each nostril. These remained in place for 15 minutes and were later removed. This procedure was performed in three visits one week apart. During the fourth and last visit (one week after the previous visit), olfaction was reevaluated using the measures previously described.
| Study group | Role | What they receive |
|---|---|---|
| intranasal insulin | Experimental | For each selected participant (n=27), a baseline olfactory measurement was performed with Sniffin Sticks® (12 items) and a capillary glucose measurement was obtained with Dextrostix® NF before and after the intervention, in order to guarantee patient safety and reduce the risk of hypoglycemia. The initial and final measurements were divided into three subsections with a different number of correct answers for each section Subsequently, Gelfoam® cottonoids soaked in 40 IU of NPH insulin were placed on the nasal roof (between the nasal septum and the middle meatus) of each nostril. These remained in place for 15 minutes and were later removed. This procedure was performed in three visits one week apart. During the fourth and last visit (one week after the previous visit), olfaction was reevaluated using the measures previously described. Receives: Drug: Insulin |
What is being measured
The primary outcome is the main question the study is designed to answer.
SMELL LOSS IMPROVEMENT
Measured: 1 MONTH
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Jul 2022
- Study start4 Jan 2021
- Primary completion25 Nov 2021
- Study completion20 Dec 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for AnosmiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 27 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidad Panamericana
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Daniel Dibildox Reynoso, Universidad Panamericana
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05461365
- Sponsor's protocol ID
- 01007
- Status last verified
- Jul 2022
- First submitted
- 14 Jul 2022
- Last updated
- 18 Jul 2022
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Oleszkiewicz A, Schriever VA, Croy I, Hahner A, Hummel T. Updated Sniffin' Sticks normative data based on an extended sample of 9139 subjects. Eur Arch Otorhinolaryngol. 2019 Mar;276(3):719-728. doi: 10.1007/s00405-018-5248-1. Epub 2018 Dec 15.
PubMed 30554358Kosugi EM, Lavinsky J, Romano FR, Fornazieri MA, Luz-Matsumoto GR, Lessa MM, Piltcher OB, Sant'Anna GD. Incomplete and late recovery of sudden olfactory dysfunction in COVID-19. Braz J Otorhinolaryngol. 2020 Jul-Aug;86(4):490-496. doi: 10.1016/j.bjorl.2020.05.001. Epub 2020 May 25.
PubMed 32534982Vaira LA, Salzano G, Fois AG, Piombino P, De Riu G. Potential pathogenesis of ageusia and anosmia in COVID-19 patients. Int Forum Allergy Rhinol. 2020 Sep;10(9):1103-1104. doi: 10.1002/alr.22593. Epub 2020 Jun 15. No abstract available.
PubMed 32342636Rezaeian A. Effect of Intranasal Insulin on Olfactory Recovery in Patients with Hyposmia: A Randomized Clinical Trial. Otolaryngol Head Neck Surg. 2018 Jun;158(6):1134-1139. doi: 10.1177/0194599818764624. Epub 2018 Mar 20.
PubMed 29557250Mohamad SA, Badawi AM, Mansour HF. Insulin fast-dissolving film for intranasal delivery via olfactory region, a promising approach for the treatment of anosmia in COVID-19 patients: Design, in-vitro characterization and clinical evaluation. Int J Pharm. 2021 May 15;601:120600. doi: 10.1016/j.ijpharm.2021.120600. Epub 2021 Apr 14.
PubMed 33862126
Study at a glance
From the registry record, last updated by the sponsor on 18 Jul 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Intranasal Insulin for COVID-19-related Smell Loss
- ClinicalTrials.gov ID
- NCT05461365
- Acronym / sponsor ID
- 01007
- Conditions
- Anosmia, Smell Loss, Paraosmia, Hyposmia, COVID-19
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 27 participants (actual)
- Lead sponsor
- Universidad PanamericanaUniversity, hospital or other
- Study start
- 4 Jan 2021 (actual)
- Primary completion
- 25 Nov 2021 (actual)
- Study completion
- 20 Dec 2021 (actual)
- First posted
- 18 Jul 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study was to quantify the improvement in olfaction of 27 post-COVID-19 patients, after three intreventions of intranasal insulin during a four week period, with the help of the Threshold, Discrimination and Identification (TDI) score evaluated with Sniffin Sticks®.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| intranasal insulin | Experimental | Drug: InsulinFor each selected participant (n=27), a baseline olfactory measurement was performed with Sniffin Sticks® (12 items) and a capillary glucose measurement was obtained with Dextrostix® NF before and after the intervention, in order to guarantee patient safety and reduce the risk of hypoglycemia. The initial and final measurements were divided into three subsections with a different number of correct answers for each section Subsequently, Gelfoam® cottonoids soaked in 40 IU of NPH insulin were placed on the nasal roof (between the nasal septum and the middle meatus) of each nostril. These remained in place for 15 minutes and were later removed. This procedure was performed in three visits one week apart. During the fourth and last visit (one week after the previous visit), olfaction was reevaluated using the measures previously described. |
Who may qualify
- Ages
- 18 to 59 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- COVID-19 in the last 3 to 18 months and who persisted with anosmia, hyposmia or other olfactory dysfunction chronically and without improvement
Key exclusion criteria (1 listed)
- nasal tumors, chronic sinusitis, drug-induced sinusitis, nasal polyposis, neurodegenerative disease, smoking, pregnancy Hypoglycemia and a previous diagnosis of diabetes mellitus or anatomical malformations such as septal deviation, rhinosinusitis or choanal atresia
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| InsulinAlso: intranasal insulinGelfoam® cottonoids soaked in 40 IU of NPH insulin were placed on the nasal roof (between the nasal septum and the middle meatus) of each nostril. These remained in place for 15 minutes and were later removed. This procedure was performed in three visits one week apart. During the fourth and last visit (one week after the previous visit), olfaction was reevaluated using the measures previously described. | Drug | intranasal insulin |
Primary outcome
SMELL LOSS IMPROVEMENT
Time frame: 1 MONTH
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Jul 2022.
- Background: PubMed 30554358Oleszkiewicz A, Schriever VA, Croy I, Hahner A, Hummel T. Updated Sniffin' Sticks normative data based on an extended sample of 9139 subjects. Eur Arch Otorhinolaryngol. 2019 Mar;276(3):719-728. doi: 10.1007/s00405-018-5248-1. Epub 2018 Dec 15.
- Background: PubMed 32534982Kosugi EM, Lavinsky J, Romano FR, Fornazieri MA, Luz-Matsumoto GR, Lessa MM, Piltcher OB, Sant'Anna GD. Incomplete and late recovery of sudden olfactory dysfunction in COVID-19. Braz J Otorhinolaryngol. 2020 Jul-Aug;86(4):490-496. doi: 10.1016/j.bjorl.2020.05.001. Epub 2020 May 25.
- Background: PubMed 32342636Vaira LA, Salzano G, Fois AG, Piombino P, De Riu G. Potential pathogenesis of ageusia and anosmia in COVID-19 patients. Int Forum Allergy Rhinol. 2020 Sep;10(9):1103-1104. doi: 10.1002/alr.22593. Epub 2020 Jun 15. No abstract available.
- Results publication: PubMed 29557250Rezaeian A. Effect of Intranasal Insulin on Olfactory Recovery in Patients with Hyposmia: A Randomized Clinical Trial. Otolaryngol Head Neck Surg. 2018 Jun;158(6):1134-1139. doi: 10.1177/0194599818764624. Epub 2018 Mar 20.
- Results publication: PubMed 33862126Mohamad SA, Badawi AM, Mansour HF. Insulin fast-dissolving film for intranasal delivery via olfactory region, a promising approach for the treatment of anosmia in COVID-19 patients: Design, in-vitro characterization and clinical evaluation. Int J Pharm. 2021 May 15;601:120600. doi: 10.1016/j.ijpharm.2021.120600. Epub 2021 Apr 14.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Insulin in people with Anosmia and Smell Loss, run by Universidad Panamericana at 1 site in Mexico.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Jul 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Mexico. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
SMELL LOSS IMPROVEMENT (time frame: 1 MONTH). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05461365, which also lists 5 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jul 2022.